Why should you use a condom after a D&C?

After a D&C, a period of "pelvic rest" is ordered, usually four to six weeks. Birth control should be resumed when you start having intercourse. After a D&C, the body needs time to return to a normal cycle. Pregnancy, though not immediately recommended, is possible at any time.

You shouldn't have sex at all for about two weeks after the procedure is done or until you stop bleeding. A D&C is performed in because your body did not expel contents of the Uterus. Since a D&C is a minor surgical procedure it takes your body to heal. Another pregnancy could prevent any healing so you should use condoms.